- in cycle setting for busy zone status busy;
- there are don't insert a new row or/and column of zones in the zone
  matrix if texture was exactly packed in existing zone(-s) by row or/and
  column;

Basically the algorithm is ready. But if try to paint some others textures
with the larger sizes, then can see that its painting bad. Needs to be
corrected this bug in nexts commits.

Signed-off-by: Oleg Matiyuk <olgerd27@gmail.com>